Here's my guesses for the Rugrats:
Chucky: INFP? ISFJ? ISTJ? He's kinda hard to pin down MBTI wise. Definite introvert and definite enneagram 6.
Chucky's dad: Whatever type Chucky is
Phil and Lil: Some sort of SP. ESFP maybe.
Angelica's mom: ENTJ
Angelica's dad: ???
Stew: XNTP. He's a wacky inventor type and quite absent minded. Hard to tell the E/I
Tommy's mother: ESFJ
Ren and Stimpy:
That was easy.
The african-american friend that hangs out with Arnold (sorry I can't recall his name): ???
I've only seen a couple episodes of Doug but hes a clear INFP in my book.
I haven't seen the others so can't comment.